two-factor-authentication-best-practices

Implement TOTP, OTP, and backup codes for user authentication.

Updated Apr 5, 2026
One-click install
npx skills add https://github.com/sc30gsw/jikan-log --skill two-factor-authentication-best-practices-sc30gsw
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: two-factor-authentication-best-practices
Source: https://github.com/sc30gsw/jikan-log/tree/main/.agents/skills/two-factor-authentication-best-practices
Command: npx skills add https://github.com/sc30gsw/jikan-log --skill two-factor-authentication-best-practices-sc30gsw

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill addresses vulnerabilities in single-factor authentication by enabling multi-factor verification, preventing unauthorized access and enhancing overall app security for user accounts.

Core Features & Use Cases

  • TOTP and OTP Setup: Configure authenticator apps or email/SMS codes for seamless verification during logins.
  • Backup Codes and Trusted Devices: Generate secure recovery options and manage device trust to balance security with user convenience.
  • Use Case: For an e-commerce platform, integrate this to require 2FA on sign-in, reducing account takeover risks while allowing trusted devices to skip repeated verifications.

Quick Start

Guide me through setting up two-factor authentication using Better Auth for my web app's login flow.

Frequently Asked Questions about two-factor-authentication-best-practices

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I set up two-factor authentication using Better Auth in my web app?

Two-factor authentication prevents unauthorized access by requiring a second verification step, addressing vulnerabilities in single-factor logins. It enhances overall app security by ensuring that compromised passwords alone cannot grant access to user accounts.

Can I generate backup codes and manage trusted devices with TOTP and OTP?

Yes, you can generate secure backup codes for recovery and manage trusted devices to skip repeated verifications. This balances strict multi-factor security with user convenience by allowing trusted devices to bypass subsequent OTP or TOTP checks.

What security options are available for 2FA verification flows?

Available security options for 2FA verification flows include encryption and rate limiting. These configurations protect the code generation and server-client verification processes from brute-force attacks and unauthorized interception.

Does Better Auth support both TOTP authenticator apps and email or SMS OTP codes?

Better Auth supports configuring both TOTP for authenticator apps and OTP for email or SMS codes. This allows seamless verification during logins, enabling you to choose the delivery method that best fits your web application requirements.

Why should I implement multi-factor verification for my e-commerce platform?

You should implement multi-factor verification for your e-commerce platform to reduce account takeover risks. Requiring 2FA on sign-in prevents unauthorized access and enhances overall app security for user accounts.